Lubricating apparatus for engines.



No. 707,794. Patented Aug. 26, 1902.

E. T. mums. LUBBICATING APPARATUS FOR ENGINES.

lhvrrn States PATENT OFFICE.

EDDY T. MOKAIG, OF CHICAGO, ILLINOIS.

LUBRICATENG APPARATUS FOR ENGINES.

SPECIFICATION forming part of Letters Patent No.- 707,794, dated August26, 1902.

Application filed December 9, 1901. Serial No. 85,184. No model.)

To (all whom, it may concern.-

Be it known that I, EDDY T. MOKAIG, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Lubricating Apparatusfor I-Iydrocarbon-Engine Pistons, &c., of which the following is aspecification.

My invention relates to certain new and useful improvements inlubricating apparatus, and I have shown the same as applied to thepiston of a hydrocarbon-engine; and its purpose is to provide a simpleand efficient device by which the piston shall be thoroughly lubricatedat all times without the possibility of failure.

Referring to the accompanying sheet 0 drawings, in which the samereference characters are used to designate identical parts in all thefigures, Figure 1 is a side elevation of a hydrocarbon-engine with myinvention for lubricating the piston applied thereto, with a portion ofthe cylinder in section and broken away. Fig. 2 is a central sectionthrough a portion of the cylinder, and Fig. 3 is a plan view of thetopof the cylinder and piston.

In the drawings, (t represents the frame of the engine; Z), its piston;0, its cylinder; d, the driving-shaft,having the customary crankconnected by the piston-rod e to the piston Z), andf is the fly-wheel onthe shaft. The piston 19 is preferably provided with the customarymetallic packing-rings and other suitable lubricating devices of thatclass commonly employed in machines of this class and not shown in thedrawings. The cylinder 0 is furnished at its upper end with an externalannular channel or groove g, which is preferably formed integraltherewith. This groove g receives and holds the oil or other lubricantand is provided with a series of wicks h, arranged, preferably, oppositeeach other, as shown in Figs. 2 and 3, and retained in the annularoil-channel by means of an expansible spring-clip], which is adapted tolie within the annular groove of the oil-chamber and hold the upper endsof the wicks in contact with the piston. The oil-channel is provided,preferably, near the top of the cylinder 0,

and the wicks are held in such position that they contact with thepiston 11 when the latter reaches the upper end of its stroke.

The operation of the device will be readily apparent, as the wicks serveby capillary attraction to present to the cylindera constant supply ofoil, and a uniform lubrication is thus obtained without any othertroublethan that of keeping the channel 9 filled with oil. As many wicksmay be employed as are found necessary to secure the desired degree oflubrication, and the width of the wicks may be likewise arranged.

While I have shown my invention as applied to the lubrication of thepiston of a gasolene-engine, it will be readily perceived that it can beemployed advantageously for lubricating other mechanisms, especiallythose in which a vertical plunger reciprocates in a cylinder.

\Vhile I have shown my invention as embodied in the form which I atpresent consider best adapted to carry out its purposes, it will beunderstood that it is capable of some modifications and that I do notdesire to be limited in the interpretation of the following claimsexcept as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In a device of the class described, the combination with thecylinder, of the piston adapted to reciprocate therein, a channelconnected with the cylinder and adapted to receive a supply of thelubricant, and a wick extending into said channel and having its otherend in position to contact with the piston; substantially as described.

2. In a device of the class described, the combination with thecylinder, of the piston adapted to reciprocate therein, a channelconnected with the cylinder and adapted to receive a supply of thelubricant, a wick extending into said channel and having its other endin position to contact with the piston, and means for holding said wickin said channel; substantially as described.

3. In a device of the class described, the combination with thecylinder, of the piston adapted to reciprocate therein a channelconnected with the cylinder and adapted to re- 1 In testimony whereof Iaflix my signature ceive a supply of the lubricant, a wick exin presenceof two witnesses, tending into said channel and having its I r other endin position to contact with the pis- EDDY MOKAIG' 5 ton, and means forholding said Wick in said Witnesses:

channel consisting of the annular spring-clip JOHN H. MCELROY,

j; substantially as described. R. K. GUSTAFSON.

